CN107956887A - A kind of locking plate coordinates close motor-driven valve - Google Patents
A kind of locking plate coordinates close motor-driven valve Download PDFInfo
- Publication number
- CN107956887A CN107956887A CN201711401025.2A CN201711401025A CN107956887A CN 107956887 A CN107956887 A CN 107956887A CN 201711401025 A CN201711401025 A CN 201711401025A CN 107956887 A CN107956887 A CN 107956887A
- Authority
- CN
- China
- Prior art keywords
- locking plate
- fixed
- fixed plate
- arc
- arc groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/10—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid with additional mechanism between armature and closure member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Valve Housings (AREA)
Abstract
A kind of locking plate coordinates close motor-driven valve, the top surface of the fixed plate of the present invention is provided with the arc groove of perforation fixed plate bottom surface, the arc convex coordinated with arc groove is provided with the locking plate, in arc convex insertion arc groove, the inner side cell wall of arc groove and the inner wall of arc convex are fixed with merging laser welding.The locking plate arc convex of the present invention matches somebody with somebody with the arc groove inner ring on fixed plate substrate and merges welding, welding position is in the axial center of substrate, fixed plate substrate is than relatively thin, it is general easily to form fine and close tissue, the especially central part of substrate, its tissue is finer and close, and weld seam formed here, is readily available relatively good seam organization.
Description
Technical field
The invention belongs to valve technology field, especially coordinates close motor-driven valve related with a kind of locking plate.
Background technology
Existing motor-driven valve using chocking construction be hidden in rotor internal cavity realize motor-driven valve miniaturization, the rotor of motor-driven valve with
Fixed plate for being fixedly connected with locking plate and connection wire rod is fixed by being molded.Existing motor-driven valve is set in fixed plate
Boss, opens up an elongated through hole on boss, which is difficult to realize according to stamping parts, more than bar processing then processing
Amount is too big, of high cost, and to solve the problems, such as this, fixed plate is generally formed using powder metallurgy sintered.The prior art is by locking plate
Be fixed on fixed plate boss it is cylindrical on, and laser welding is fixed, when locking plate laser welding is fixed, since boss size limits
The reasons such as system, to improve locking plate and boss fixing intensity, it is necessary to welded using larger welding current, since fixed plate is powder
Pressure injection and sinter form, its part compactness is poor, generally can only achieve 80% or so of common stainless steel part, especially convex
The density of platform is more difficult to guarantee, and since density ratio is relatively low, when welding can cause pore internal diameter to shrink, and is influenced fixed plate and is assembled with screw
When rotate flexibility, influence valve opening pulse setting accuracy.Locking plate must be inserted from above rotor internal cavity, fixed plate at the same time
Upper hole must open sufficiently large, otherwise influence locking plate assembling, but Kong Tai great in fixed plate, but when can cause the rotor to be molded above and below
Molding sealing surface is not wide enough, and pressure when causing rotor to produce overlap when being molded, while being molded will also result in bore deformation, and obstruction stops
Movable plate is pressed.Stress is often produced after being pressed into additionally, due to locking plate, causes the outside deflection of locking plate, causes locking plate with stopping
The hidden danger such as the stop surplus deficiency of rotating ring.
The content of the invention
For above-mentioned background technology there are the problem of, the present invention is intended to provide a kind of locking plate coordinates close motor-driven valve.
For this reason, the present invention uses following technical scheme：A kind of locking plate coordinates close motor-driven valve, including valve body and line
Circle, valve body include valve body outer cover, valve seat, rotor part, interior threaded part, externally threaded item, spool and locking plate, mounting coil
In the peripheral part of valve body outer cover, valve body outer cover is fixedly welded on the top of valve seat, and the inner cavity of valve body outer cover and valve base cavity are mutual
Perforation, rotor part are arranged in the inner cavity of valve body outer cover, and rotor part includes rotor and fixed plate, and rotor and fixed plate pass through
Injection mold injection is fixed to install the vertical central through hole for being fixed on fixed plate, the internal thread in one, externally threaded item
Component, which coordinates, is placed on externally threaded item peripheral part, and interior threaded part is fixedly installed on valve seat, the spool and external screw thread
Component floating connection；The externally threaded item band movable valve plug that moves up and down moves up and down, so that spool is close to or away from motor-driven valve
Valve port, changes valve port circulation area, adjusts the flow of refrigeration system；It is characterized in that the top surface of the fixed plate is provided with and passes through
Lead to the arc groove of fixed plate bottom surface, the arc convex coordinated with arc groove, arc convex insertion are provided with the locking plate
In arc groove, the inner side cell wall of arc groove and the inner wall of arc convex are fixed with merging laser welding.
As the supplement to above-mentioned technical proposal and perfect, present invention additionally comprises following technical characteristic.
The arc groove is provided with two and central symmetry, and locking plate arc convex has two, is centrosymmetric.
The end face center of the fixed plate is equipped with protrusion, and convex center offers through hole, the through hole with it is outer
Screwed part is fixed；Eccentric orfice is further opened with the fixed plate, eccentric orfice is that positioning is used when rotor and locking plate are pressed
, eccentric orfice center is in two arc groove symmetrical center lines.
The locking plate includes vertical portion and baseplate part, and baseplate part forms the arc convex to upper overturning, described
Baseplate part also have centre bore, the side of centre bore sets open slot, and the center of the open slot is overlapped with vertical portion center,
It is and vertical with the center of arc convex.
Chamfering is set on the inside of the arc groove, can be bonded after ensureing locking plate press fitting with fixed plate end face.
The present invention can reach following beneficial effect：1st, locking plate arc convex of the invention and the arc on fixed plate substrate
Shape groove inner ring is in the axial center of substrate with welding, welding position is merged, and for fixed plate substrate than relatively thin, general easily formation is fine and close
Tissue, especially substrate central part, its tissue is finer and close, and weld seam formed here, is readily available relatively good weldering
Stitch tissue.
2nd, since arc groove is more long than the circumference of boss, on the premise of identical fixing intensity is obtained, locking plate is with consolidating
Fixed board welding energy can reduce, while arc groove is distant from central small hole, and locking plate is welded to centre bore with fixed plate
Heat affecting can further decline, and ensure that the precision of centre bore.
3rd, since locking plate need not pass through fixed plate, locking plate it is easier for installation, while fixation can also be reduced
The width of the upper groove of plate, increases the contact area of mold clamping, avoids rotor from producing overlap when being molded.
4th, contact site is symmetrical due to being pressed and welding, and with the vertical portion of brake(-holder) block in vertical direction, it is welded and pressure
The stress of dress does not interfere with the verticality of locking plate fixation so that the installation verticality of locking plate is easier to ensure that.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention.
Fig. 2 faces direction structure schematic diagram for the rotor part of the present invention.
Fig. 3 is the side-looking direction structure diagram of the rotor part of the present invention.
Fig. 4 is the overlook direction structure diagram of the fixinig plate of the present invention.
Fig. 5 is the overlooking the structure diagram of the locking plate of the present invention.
Fig. 6 is the side-looking direction structure diagram of the locking plate of the present invention.
Fig. 7 is the schematic top plan view that the locking plate of the present invention and fixinig plate are welded and fixed.
Embodiment
The embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
As shown in Fig. 1-Fig. 7, the present invention includes valve body and coil, valve body including valve body outer cover 1, valve seat 2, rotor part,
Interior threaded part 6, externally threaded item 5, spool 7 and locking plate 9, mounting coil is in the peripheral part of valve body outer cover 1, valve body outer cover 1
The top of valve seat 2 is fixedly welded on, inner cavity and the valve base cavity of valve body outer cover 1 are mutually communicated, and rotor part is arranged at outside valve body
In the inner cavity of cover 1, rotor part includes rotor 3 and fixed plate 4, and rotor 3 and fixed plate 4 are fixed in one by injection mold injection
Body, externally threaded item 5 install the vertical central through hole for being fixed on fixed plate 4, and interior threaded part 6, which coordinates, is placed on externally threaded item
5 peripheral parts, the bottom of interior threaded part 6 are fixedly installed on the internal chamber wall of valve seat 2, and spool 7 floats with externally threaded item 5 to be connected
Connect；Externally threaded item 5 moves up and down to move up and down with movable valve plug 7, so that spool 7 changes close to or away from the valve port of motor-driven valve
Become valve port circulation area, adjust the flow of refrigeration system；The top surface of fixed plate 4 is provided with the arc groove of perforation fixed plate bottom surface
42, the arc convex 93 coordinated with arc groove 42 is provided with locking plate 9, arc convex 93 is inserted into arc groove 42, arc groove
The outer wall of 42 cell wall and arc convex 93 is fixed with merging laser welding, it is preferable that the inner side of arc groove 42 setting chamfering 421,
It can be bonded after ensureing locking plate press fitting with fixed plate end face.Be fixed with elastic track 80 on interior threaded part, elastic track 80 with
Interior threaded part forms helical orbit, and locating snap ring 14 can spin movement on the helical orbit.When the rotor is turning, band
Dynamic locking plate rotates together, and locking plate is stirred locating snap ring 14 and rotated together, and upper limit portion 82, lower limit are provided with elastic track
Portion 81, when locating snap ring is encountered in lower limit portion, rotor stops operating, and externally threaded item also stops further moving downward.When only
It is that rotor also stops operating that rotating ring, which encounters upper limit portion, and externally threaded item also stops moving further up.By setting stop
Mechanism, so as to control the stroke of externally threaded item so that externally threaded item is moved in certain one stroke all the time.On stop plate base
End face is bonded with fixed plate lower face.Since locking plate raises up, the weld seam between locking plate and fixed plate is arranged on fixation
The vertical centre of plate substrate, fixed plate material is dense at this, easily forms good weld seam, and forms weldquality and also compare
It is easier to observe, welding condition is also suitable with former scheme.
Preferably, arc groove 42 is provided with two and central symmetry, and arc convex 93 has two, is centrosymmetric.Gu
Two arc grooves are into being symmetrical arranged on fixed board, and locking plate upper overturning protrusion is also into being symmetrical arranged, between locking plate and fixed plate
Weld seam is also symmetrical set, and with locking plate vertical part in vertical direction, therefore the press fitting and welding of locking plate do not interfere with stop
The verticality of piece assembling so that locking plate assembly precision is more preferable.
Due to locking plate arc convex and fixed plate arc groove welding 422,422 length ratio of weld seam is welded on boss will
It is long, on the premise of identical weld strength is ensured, the welding current of smaller can be used, while weld seam is from elongated hole on boss
Also farther, can greatly reduce welding heat influences the size of elongated hole in fixed plate, ensures rotor and screw assembly precision.
Further, the end face center of fixed plate 4 is equipped with protrusion 41, and convex center offers perforation fixed plate bottom surface
The vertical central through hole, vertical central through hole are fixed with externally threaded item 5；Eccentric orfice 43 is further opened with fixed plate 4, it is eccentric
The positioning when rotor is pressed with locking plate of hole 43 is used, and 43 center of eccentric orfice is in two 42 symmetrical center lines of arc groove.
Locking plate 9 includes vertical portion 91 and baseplate part 92, and baseplate part 92 forms arc convex 93, baseplate part 92 to upper overturning
Also centre bore 94, the side of centre bore 94 set open slot 95, and the center of open slot 95 is overlapped with 91 center of vertical portion, and with
The center of arc convex 93 is vertical.
Claims (5)
1. a kind of locking plate coordinates close motor-driven valve, including valve body and coil, valve body to include valve body outer cover（1）, valve seat（2）、
Rotor part, interior threaded part（6）, externally threaded item（5）, spool（7）And locking plate（9）, mounting coil is in valve body outer cover（1）
Peripheral part, valve body outer cover（1）It is fixedly welded on valve seat（2）Top, valve body outer cover（1）Inner cavity mutually passed through with valve base cavity
Logical, rotor part is arranged at valve body outer cover（1）Inner cavity in, rotor part includes rotor（3）And fixed plate（4）, rotor（3）With
Fixed plate（4）It is fixed in one, externally threaded item by injection mold injection（5）Install and be fixed on fixed plate（4）It is vertical in
Heart through hole, the interior threaded part（6）Cooperation is placed on externally threaded item（5）Peripheral part, interior threaded part（6）It is fixed on valve
Seat（2）On（Consider other rivals, interior threaded part fixed form not said too specific in the claims）, it is described
Spool（7）With externally threaded item（5）Floating connection；It is characterized in that：The fixed plate（4）Top surface to be provided with perforation solid
The arc groove of fixed board bottom surface（42）, the locking plate（9）On be provided with and arc groove（42）The arc convex of cooperation（93）, arc
Shape is raised（93）It is inserted into arc groove（42）In, arc groove（42）Inner side cell wall and arc convex（93）Inner wall with merge laser
It is welded and fixed.
2. a kind of locking plate according to claim 1 coordinates close motor-driven valve, it is characterised in that：The arc groove
（42）It is provided with two and central symmetry, the arc convex（93）There are two, be centrosymmetric.
3. a kind of locking plate according to claim 2 coordinates close motor-driven valve, it is characterised in that：The fixed plate
（4）End face center be equipped with protrusion（41）, convex center offers the vertical central through hole of perforation fixed plate bottom surface, described
Vertical central through hole and externally threaded item（5）It is fixed；The fixed plate（4）On be further opened with eccentric orfice（43）, eccentric orfice
（43）When rotor is pressed with locking plate, positioning is used, eccentric orfice（43）Center is in two arc grooves（42）Symmetrical center line
On.
4. a kind of locking plate according to claim 3 coordinates close motor-driven valve, it is characterised in that：The locking plate
（9）Including vertical portion（91）And baseplate part（92）, baseplate part（92）The arc convex is formed to upper overturning（93）, it is described
Baseplate part（92）Also centre bore（94）, centre bore（94）Side set open slot（95）, the open slot（95）In
The heart and vertical portion（91）Center overlaps, and and arc convex（93）Center it is vertical.
5. a kind of locking plate according to claim 4 coordinates close motor-driven valve, it is characterised in that：The arc groove
（42）Inner side sets chamfering（421）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711401025.2A CN107956887B (en) | 2017-12-22 | 2017-12-22 | Electric valve with tightly matched stop piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711401025.2A CN107956887B (en) | 2017-12-22 | 2017-12-22 | Electric valve with tightly matched stop piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107956887A true CN107956887A (en) | 2018-04-24 |
| CN107956887B CN107956887B (en) | 2023-05-16 |
Family
ID=61956322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711401025.2A Active CN107956887B (en) | 2017-12-22 | 2017-12-22 | Electric valve with tightly matched stop piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107956887B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2846913Y (en) * | 2005-12-08 | 2006-12-13 | 浙江中宝自控元件有限公司 | Electronic expansion valve |
| CN200952570Y (en) * | 2006-09-18 | 2007-09-26 | 浙江中宝自控元件有限公司 | Electronic expansion valve |
| CN102454818A (en) * | 2010-10-15 | 2012-05-16 | 浙江三花股份有限公司 | Electric valve |
| CN103133707A (en) * | 2011-11-22 | 2013-06-05 | 浙江三花股份有限公司 | Motorized valve and manufacture method of motorized valve |
| CN103216663A (en) * | 2013-03-20 | 2013-07-24 | 何永水 | Electric valve |
| CN203963029U (en) * | 2014-04-30 | 2014-11-26 | 吴俊云 | A kind of electric expansion valve |
-
2017
- 2017-12-22 CN CN201711401025.2A patent/CN107956887B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2846913Y (en) * | 2005-12-08 | 2006-12-13 | 浙江中宝自控元件有限公司 | Electronic expansion valve |
| CN200952570Y (en) * | 2006-09-18 | 2007-09-26 | 浙江中宝自控元件有限公司 | Electronic expansion valve |
| CN102454818A (en) * | 2010-10-15 | 2012-05-16 | 浙江三花股份有限公司 | Electric valve |
| CN103133707A (en) * | 2011-11-22 | 2013-06-05 | 浙江三花股份有限公司 | Motorized valve and manufacture method of motorized valve |
| CN103216663A (en) * | 2013-03-20 | 2013-07-24 | 何永水 | Electric valve |
| CN203963029U (en) * | 2014-04-30 | 2014-11-26 | 吴俊云 | A kind of electric expansion valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107956887B (en) | 2023-05-16 |
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